Recirculating Hood OIM

8/14/2019 Recirculating Hood OIM

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November 2008 Rev. 1

Recirculating Hood

Installation, Operation, and Maintenance Manual

Save these instructions . This document is the property of the owner of this equipment and isrequired for future maintenance. Leave this document with the owner when installation orservice is complete.

RECEIVING AND INSPECTIONUpon receiving unit, check for any interior and exterior damage, and if found, report itimmediately to the carrier. Also check that all accessory items are accounted for and aredamage free.

WARNING!! Installation of this unit should only be performed by a qualified professional who has read andunderstands these instructions and is familiar with proper safety precautions. Read thismanual thoroughly before installing or servicing this equipment.


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TABLE OF CONTENTSWARRANTY ..................... ...................... ......................... ......................... ...................... ......................... 3 LISTINGS ................................................................................................................................................ 4 INSTALLATION ........................ ...................... ......................... ......................... ...................... ................. 4

Site Preparation .................................................................................................................................. 4 Mechanical Installation .................... ......................... ...................... ......................... ......................... ... 5

Table 1 Clearances ..................... ......................... ......................... ...................... ......................... 5 Hanging Dimensions ...................... ......................... ......................... ...................... ......................... 6 Hanging Details ...................... ......................... ......................... ......................... ...................... ........ 6

Electrical ............................................................................................................................................. 7 Electrical Connections ......................... ......................... ....................... ......................... ................... 7 Copper Wire Ampacity .................................... ......................... ......................... ...................... ........ 7

OPERATION ........................................................................................................................................... 8 Start Up Procedure ..................... ......................... ......................... ......................... ...................... ........ 8 Components ......................... ...................... ......................... ......................... ....................... ................ 8

Hood Switch Plate ....................... ......................... ...................... ......................... ......................... ... 8 Electrical Board ...................... ......................... ......................... ......................... ...................... ...... 10 On-Delay Timer ...................... ......................... ......................... ......................... ...................... ...... 11 Off-Delay Timer ...................... ......................... ......................... ......................... ...................... ...... 11 Airflow Switch ...................... ......................... ...................... ......................... ......................... ......... 11 High Temperature Limit ........................ ........................ ....................... ......................... ................. 12 Filters ............................................................................................................................................ 12 Filter Stages ........................ ......................... ...................... ......................... ......................... ......... 12 Filter Part Numbers ..................... ......................... ...................... ......................... ......................... . 12 Stage 1 High Efficiency Baffle Filter ...................... ......................... ...................... ....................... 13Stage 1 Captrate Solo Baffle Filter ........................ ......................... ...................... ....................... 13Stage 2 HEPA Filter ......................... ......................... ....................... ......................... ................. 13 Stage 3 Charcoal Filter ..................... ......................... ....................... ......................... ................. 13

Troubleshooting ................................................................................................................................ 14

Troubleshooting Chart ......................... ......................... ....................... ......................... ................. 14 MAINTENANCE .................................................................................................................................... 15

General Maintenance ...................... ......................... ...................... ......................... ......................... . 15 Weekly Maintenance ....................... ......................... ...................... ......................... ......................... . 15 Quarterly Maintenance .................... ......................... ...................... ......................... ......................... . 15 Start-Up and Maintenance Documentation .................. ......................... ...................... ....................... 16

Job Information ............................................................................................................................. 16 Hood Information ......................... ......................... ...................... ......................... ......................... . 16 Maintenance Record ...................... ......................... ......................... ...................... ....................... 16 Factory Service Department ......................... ...................... ......................... ......................... ......... 16


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WARRANTYThis equipment is warranted to be free from defects in materials and workmanship, under normal use andservice, for a period of 12 months from date of shipment. This warranty shall not apply if:

1. The equipment is not installed by a qualified installer per the MANUFACTURERS installationinstructions shipped with the product,

2. The equipment is not installed in accordance with federal, state and local codes and regulations,3. The equipment is misused or neglected,4. The equipment is not operated within its published capacity,5. The invoice is not paid within the terms of the sales agreement.

The MANUFACTURER shall not be liable for incidental and consequential losses and damagespotentially attributable to malfunctioning equipment. Should any part of the equipment prove to bedefective in material or workmanship within the 12-month warranty period, upon examination by theMANUFACTURER, such part will be repaired or replaced by MANUFACTURER at no charge. TheBUYER shall pay all labor costs incurred in connection with such repair or replacement. Equipment shallnot be returned without MANUFACTURERS prior authorization, and all returned equipment shall beshipped by the BUYER; freight prepaid to a destination determined by the MANUFACTURER.


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LISTINGS This hood is ETL listed to standard UL-710B and EPA test method 202 when installed in accordance withthese installation instructions and National Fire Protection Association Standard NFPA 96, Standard forVentilation Control and Fire Protection of Commercial Cooking Operations.

INSTALLATIONIt is imperative that this unit is installed and operated with the designed airflow, filters and construction inaccordance with this manual. If there are any questions about any items, please call the servicedepartment at 1-866-784-6900 for warranty and technical support issues.

WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICEOR MAINTAINANCE CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH.READ THE INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONSTHOROUGHLY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT.

WARNING: THIS PRODUCT IS NOT PROVIDED WITH AN INTEGRAL FIREEXTINGUISHING SYSTEM. AUTHORITIES HAVING JURISDICTION SHOULD BECONSULTED AS TO THE REQUIREMENTSFOR THIS EQUIPMENT WITH RESPECTTO FIRE EXTINGUISHING SYSTEMS, SUCH AS THE NEED FOR FIELDINSTALLED SYSTEMS IN ACCORDANCE WITH NFPA 96.

Site Preparation

1. Provide clearance around installation site to safely rig and lift equipment into its final position.

Consider general service and installation space when locating unit.2. Thoroughly review the plans and specifications of the project.3. Determine the exact location in which the cooking hood will be installed and verify that there are

no interferences, which will prevent proper installation.4. Verify that all overhead beams and angles are structurally strong enough to support the weight of

the hood and hanging system. It is often necessary to strengthen existing structural beams, asthey are not designed to carry the weight of a stainless steel hood. Refer to the project submittaldrawing for hood weight(s). It may also be necessary to create a support structure suspendedfrom the ceiling joists to better align with the desired hood location.

5. Determine if adequate room is available to install the hood with proper clearances fromcombustible material. IMC, NFPA96 and local authorities having jurisdiction call for a minimumclearance (typically 18 inches) between the cooking hood(s) and building materials, which arecombustible. However, IMC and NFPA96 outline acceptable clearance reduction methods. It isimportant to check with the local authority having jurisdiction to determine that the installationmethod is satisfactory to meet their requirements prior to installing the equipment.

FOLLOW SMACNA GUIDES AND RECOMMENDATIONS FOR THE HANGING ANDINSTALLATION OF HOODS.


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Mechanical Installation

The following is a step-by-step procedure for installation of the Recirculating Hood:

1. Uncrate the hood, being very careful not to dent or scratch the outer surface. NOTE: Report anydamage to the delivering freight carrier and file a claim if appropriate . Refer to theinstallation drawing for typical details of the ventilation system prior to hanging the hood. Checkthe nameplate on the equipment to make certain it meets the specifications provided by thearchitect and/or engineer. If discrepancies exist, notify the manufacturer immediately .

2. Its important that you have read and understand Site Preparation before continuing with theinstallation of the hood. See Table 1 Clearances.

3. Determine the exact location of the hood. Ensure support beams are structurally strong enough tosupport the weight of the hood. The structural integrity of the structural support system isthe responsibility of the contractor and the structural engineer

4. Use 5/16-18 threaded rod to hang the hood. Drill 3/8 holes in the structural support system oruse Unistrut to line up with the pre-punched holes on the hood. See Figure 1 for details.

5. Each corner of the hood has a pre-punched hole. It is important that the 5/16-18 threaded rodthat will be used to suspend the hood is secured at these locations. Each hole has a 14 gaugesteel support plate that is riveted to the inside of the lid to strengthen the hood corners. Do notremove or relocate these plates.

6. Raise the hood into position using high lifts or equipment jacks at each end of the hood to ensurethe hood is level. When the hood is elevated to the proper height, install 5/16-18 threaded rodbetween the hood support plates and the modified supports in the ceiling. Secure the threadedrod with 5/16-18 large flanged nuts and appropriate sized fender washers above and belowhanging angles and hood support plates.

7. Make final adjustments as needed to ensure that the hood is level. Maintain tension on all therods to ensure hood weight is evenly distributed. Make fine adjustments to the height of the hoodby simply moving the hardware up and down the threaded rod.

8. For further information detailing installation and dimensional data. See Figure 1 & 1A .

Table 1 Clearances

Equipment Type Clearances

Ovens6" maximum from hood skirt bottom to door top.

1" minimum from hood skirt bottom to oven top.

6" minimum hood skirt over hang to heated oven door.

Conveyor Ovens30" maximum from hood skirt bottom to top of conveyor belt.

1" minimum from hood skirt bottom to oven top.6" minimum hood skirt over hang to heated oven door.

Rotisseries6" maximum from hood skirt bottom to door top.1" minimum from hood skirt bottom to oven top.6" minimum hood skirt over hang to heated oven door.


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Hanging Dimensions

Figure 1

Hanging Details

Figure 1A


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Copper Wire AmpacityWire Size AWG Maximum Amps

14 1512 2010 308 506 654 85

Electrical

Before connecting power to the hood, read and understand the entire section of this document. As-builtwiring diagrams are furnished with each hood by the factory and are attached to the inside of rear accessdoor of the hood. Electrical wiring and connections should be done in accordance with local ordinancesand the National Electric Code, ANSI/NFPA70. Be sure the voltage and phase of the power supply andthe wire amperage capacity is in accordance with the unit nameplate.

Electrical Connections

1. Always disconnect power before working on or nearthis hood. Lock and tag the disconnect switch orbreaker to prevent accidental power up.

2. A 7/8 knockout has been provided in the hood soconduit or electrical drops can be connected to anappropriate power source.

3. Make certain that the power source is compatible withthe requirements of your hood. The hood wiringschematic identifies the proper phase and voltage ofthe hood.

4. Interlocks between the electrical appliance and the hood

may be provided. Interlocks will be identified on the as built wiring diagram; failure to connectinterlocks will adversely affect performance of the hood and appliance.

5. Before connecting hood to power source, verify power line wiring is de-energized.6. Terminals H and N have been left open on the terminal strip for incoming power.7. Secure the power cable to prevent contact with sharp objects.8. Do not kink power cable and never allow the cable to come in contact with oil, grease, hot

surfaces or chemicals.9. Before powering up the hood make sure that the interior of the hood is free of loose debris or

shipping materials, and that all wire connections have been inspected.10. If any of the original wire supplied with the hood must be replaced, it must be replaced with type

TW wire or equivalent.

WARNING!! Disconnect power before installing or servicing hood. Highvoltage electrical input is needed for this equipment. This workshould only be performed by a qualified electrician.


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OPERATION

Start Up Procedure1. Work area should be free from debris.2. Hood top should never be used for storage.3. Check all electrical connection for tightness and continuity.4. Check connection between the hood and the appliance being covered if interlocks are provided.5. Use filters specified in this guide only. Failure to do so will void the warranty .6. Make sure filters are in place and secure per instructions listed below.7. Make sure blower wheel is secure and free from obstruction.8. Inspect the airstream for obstruction; intake and discharge should be free and clear.9. Inspect airflow tubes and high limit bulb as they should be secure.10. Ensure timers are set correctly; on delay and off delay timer details are listed below.11. Set high limit thermostat. Details are listed below.

12. Make sure access panels and access doors are secure.13. Start the hood by turning the external disconnect switch to the ON position. The (GREEN) power

light will light up indicating power. Check motor amperage per the as built wiring diagram. Themotor should not exceed FLA (full load amps). The other lights on the switch plate should remainoff. The lights will only come on to indicate failure.

14. The (YELLOW) light indicates an issue with airflow. Details are listed below.15. The (RED) light indicates an issue with temperature. Details are listed below.16. If the (YELLOW) and (RED) lights remain off, then the hood is operating correctly.17. There should be no excessive vibration or noise coming from the hood. Ensure heat and effluent

is being captured by the hood. Due to the triple pass filtration, the exhaust should be smoke andodor free.

Components

Hood Switch Plate

Airflow Reset

Fan On

Fan Auto

Green Power Light

Yellow Airflow Light

Red High Limit Light


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Fan On SwitchTurns the fan ON. The hood will continue to run even if the appliance being covered is turned off.

Fan Auto SwitchTurns the fan OFF when the hood is not interlocked with the appliance being covered by the hood. FanAuto can be used in conjunction with the off delay timer. When this interlock is being used the hoodblower will continue to run for a preset time after the appliance is turned off. This allows the hood tocontinue exhausting heat, steam and effluent away from the cooking appliance even after the appliancehas been turned off.

Airflow LightThis light indicates that there is a low or high airflow condition. Incorrect airflows are a result of cloggedfilters, lose access panels, intake or discharge blockage. For more details refer to AIRFLOW RESET orAIRFLOW SWITCH.

Airflow Reset ButtonIf there is a low or high airflow condition, the airflow light will come on indicating the fault. Incorrectairflows are a result of clogged filters, lose access panels, intake or discharge blockage. Make sure thepower is OFF before identifying the problem; correct the problem turn the power ON and push the resetbutton. Once the reset button has been pushed, the internal airflow switch will prove the airflow and theyellow light will go out. For more details refer to AIRFLOW SWITCH.

Power LightThis light indicates that there is power to the hood. When inspecting or maintaining the hood make surethe power is turned OFF ; the light will go out indicating the hood is safe to work on.

High Temp Light

This light indicates that the internal temperature of the hood has exceeded the temperature set point onthe thermostat. If this light turns on the heat source must be turned off. Once the internal temperature islower than the set point, the manual reset button on the thermostat can be reset and the light will go out.For details refer to THERMOSTAT.

Lights & InterlocksThe yellow & red lights on the switch plate identify a change in the operating conditions of the hood.There are two basic conditions that are monitored AIRFLOW and TEMPERATURE. The controls thatmonitor these conditions are interlocked with the cooking appliance. If there is a change in eithercondition, the heat source at the appliance is turned OFF . The heat will not come back on until issue hasbeen resolved and the hood has been reset to its normal operating condition. Interlocks are identified onthe as built wiring diagram; diagram can be found on the inside of the control access door. Wiringdiagrams should never be removed from the hood. Interlocks are discussed further under control details.


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On-Delay Timer

The On-Delay Timer is used to allow the airflow switch to prove. When supply voltage isapplied, output contacts change state after time. The set point for this timer is factory set at5 seconds. The smaller of the two dials sets the amount of time seconds, minutes, hours(this should be set to 10 seconds). The larger of the two dials sets the percentage of timeshown on the smaller dial (this should be set to .5). Using these set points the timer hasbeen set to 5 seconds (10 seconds x .5 = 5 seconds). To the right of the dials is a slide,which should be in the down position. The timer is wired per the as built wiring diagram,which can be found on the inside of the access door.

Off-Delay Timer

The Off-Delay Timer allows the hood to be interlocked with the cooking appliance. Withthe Fan Auto selected, the hood shut down is delayed for the pre-set time after thecooking appliance is shut down. The range on the timer is 1.5 to 30 minutes; the large dialin the middle of the timer sets the off delay time based on percentage. To set the timer,simply divide the desired time for off delay by the maximum time on the timer. The timer isfactory set to 30 minutes however, if you want to change the off delay time to 15 minutes(15 / 30 = .5), set the large dial to .5. The timer is wired per the as built wiring diagram,which can be found on the inside of the access door.

Airflow Switch

The airflow switch in the hood is used to restrict operation of the cooking appliance

if there is an incorrect amount of airflow. The hood is interlocked with the cookingappliance to shut down the heat source of the cooking appliance if properconditions are not met. If there is an incorrect amount of airflow, the Yellow Lighton the switch cover will illuminate indicating the condition. Correct the airflowproblem first by starting with the intake and discharge of the unit. All of the filtersshould be in place per the instructions in this guide and access panels should besecure. Once the problem has been corrected, push the Airflow Reset Button onthe switch cover. There are both high and low airflow switches contained withinone housing to measure the pressure drop across the filters. This is to ensureproper airflow through the hood ( .15 in. w.c. to .80 in. w.c. ) at the same timemonitoring clogged filters, open access panels and blocked intake or discharge.

Airflow Switch

Off-Delay Timer

On-Delay Timer


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High Temperature Limit

The high temperature limit switch is a mechanical thermostat that measuresthe temperature inside the hood. If the factory set temperature of 250F isexceeded, it will signal the heat source at the cooking appliance to shutdown. A Red Light on the switch cover will indicate the high limit hastripped. The hood will continue to run to discharge the hot air and to helpbring the temperature down so the thermostat can be reset. The manualreset button is on the thermostat. Once pushed, the cooking appliance willstart to heat.

Filters

The hood is provided with a three stage air purification system, which consists of grease rated highefficiency baffle filter or Captrate Solo baffle filter, HEPA filter and odor control filter. This hood has beentested and complies with EPA test method 202, Determination of Condensable Particulate Emissionsfrom Stationary Sources. Use only the filters listed. Failure to use listed filters will void the warrantyof the hood . Filters must be installed per this guide, and filters must be in place and positioned asintended. Please see Figure IB.

Filter Stages

Figure 1B

Filter Part Numbers

Stage Description Part Number Filter Size1 HIGH EFFICIENCY BAFFLE FILTER HESS1616 16 X 16 X 2

1 CAPTRATE SOLO FILTER CSF1616 16 X 16 X 22 HEPA FILTER 12X12X4 BPSL 11 3/8 X 11 3/8 X 2 3/4

3 CHARCOAL FILTER 2698952 11 3/8 X 11 3/8 X 3 3/4

Stage 2Stage 3

High Temperature Limit

Stage 1

Airflow

Airflow


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Stage 1 High EfficiencyStage 1 can be a high efficiencyStainless steel construction profilter protects blower equipmentmeets the requirements of NFPshould be kept clean. Inspect tdepend on the cooking load. Kmore expensive HEPA filter.Failure to use this listed filter

Stage 1 Captrate SoloOr Stage can be a Captrate

particulates. Stainless steel coresistance. This filter protectsis UL listed and meets the reqstage 1 baffle filter should benecessary; cleaning will depenprolong the life of the more expanother brand. Failure to uhood.

Stage 2 HEPA Filter HEPA filters are used to capturerated 99.9995% @ .12 Micronshown above. The stage 2 Hdepend on cooking loads and sfilter for another brand. Failthe hood.

Stage 3 Charcoal Filter Charcoal filters are used for odquality, virgin coconut shell withfor its wide absorptive capacity.

above. The stage 3 odor f il ter ccooking loads and should be reanother brand. Failure to use

13

Baffle Filter baffle filter that is used to capture larger particulides added durability and corrosion resistance.and prolongs motor life. This filter is UL listed96 when properly installed. The stage 1 baffleis filter weekly and clean if necessary; cleanineping this filter clean will also prolong the life o

Do not substitute this filter for another brwill void the warranty of the hood.

affle Filter Solo baffle filter that is used to capture lar

struction provides added durability and corrosilower equipment and prolongs motor life. Thisirements of NFPA96 when properly installed.kept clean. Inspect this filter weekly and cleon the cooking load. Keeping this filter clean

nsive HEPA filter. Do not substitute this filtee this listed filter will void the warranty of

smaller particulates. The HEPA filter in this hooSL/Laser. This filter must be in place per FigurPA filter cannot be washed. The life of this filtould be replaced as needed. Do not substitutre to use this listed filter will void the warra

r control. The filter used in this hood containssuperior pore size distribution specifically seleThe filter must be in place per Figure 1B , s

annot be washed. The life of this filter will depeplaced as needed. Do not substitute this filtthis listed filter will void the warranty of the h

tes.Thisandfilter

willthe

and.

er

onilterThen ifwillforthe

d ise 1B ,r willthis

ty of

ightedown

d onr forood.

HE Baffle Filter

HEPA Filter

Charcoal Filter

Captrate SoloBaffle Filter


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Troubleshooting The following table lists causes and corrective actions for possible problems with exhaust hoods. Reviewthis list prior to consulting manufacturer.

Troubleshooting ChartProblem Potential Cause Corrective Action Smoke is not being Captured/LowExhaust

Filters are clogged Clean FiltersExhaust Fan Operating in Incorrect Direction Check motor wiring to wiring diagram

located on fan motorHood overhang on appliance is not correct Hood should overhang cooking

appliances adequatelyNo Exhaust Exhaust Fan Not Running Turn Fan Switch On

Check Circuit Breaker/VoltageExhaust Fan Running Backwards Wheel Should Turn Per Rotation Arrow

On Blower1 Phase Motors Must Be Wired Per TheirLabel

Exhaust Air Motor Cycles on and off Motor Over Amping Make Sure Motor Amperage Is BelowFLA Of Motor LabelEnsure Motor Wiring Is Adequately Sized

Exhaust Air Temperature Too High Increase Exhaust Airflow Or Use HigherTemperature Rated Motor

Grease Dripping From Hood Hood Not Being Cleaned Often Enough Clean Surface Of Hood More FrequentlyExhaust Rate Too Low Clean Or Replace Filters

Hood is Vibrating Vibrating Exhaust Blower Find Source Of Vibration In The BlowerAnd Correct. A Rag Or Other DebrisMay Be Stuck In Blower Wheel

High Limit Indicator High Temperature Limit Decrease The Temperature Of The HoodAnd Push The Reset Button On TheThermostatThermostat Temperature Is Set Too Low,Temperature Set Point Should BeFactory Set For 250F

Airflow Indicator Incorrect Amount Of Airflow Access Panels/Doors Not In PlaceFilters Missing Or CloggedIntake Or Discharge Is BlockedAirflow Reset Button Hasnt BeenPushedOn-Delay Timer Not Set Correctly,Should Be Factory Set For 5 Seconds


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MAINTENANCETo guarantee trouble free operation of this hood, the manufacturer suggests following these guidelines.Most problems associated with hoods are directly related to poor service and maintenance, such as notreplacing or cleaning filters.

Please record any maintenance or service performed on this fan in the documentation section located atthe end of this manual.

General Maintenance

1. Proper operation of the hood depends on how well the hood is maintained. All surfaces shouldbe kept free of grease build-up for sanitation reasons and to reduce the risk of fire.

2. Grease filters must always be installed and clean to reduce build-up of grease in the exhaust ductand to allow for proper exhaust airflow.

3. Maintain all motors and electrical connections on fans attached to the hood.

Weekly Maintenance

1. Remove the grease baffle filters and clean in a dishwasher weekly.2. Clean hood plenum weekly while baffle filter is removed for cleaning.3. Carefully wipe away gritty substances clinging to stainless steel surfaces to avoid scratching.4. Dilute cup of laundry detergent (e.g. Tide) with one (1) gallon of warm water.5. Soak a clean cloth in the water detergent solution and wring out the excess water.6. Wipe the hood surfaces moving in the direction of the grain and periodically rinsing cloth in

detergent solution.7. Using a different clean cloth soaked in clean warm water, wipe the hood surfaces to remove all

traces of the detergent solution.8. Wipe hood surfaces dry with a clean, dry cloth.9. Reapply stainless steel polish.

Quarterly Maintenance

1. Inspect the hood for grease or air leaks and repair leaks where required.2. Clean hood plenum to prevent a mass accumulation of grease.3. Replace HEPA filter.4. Replace Charcoal filter.5. Inspect the motor and blower, remove any grease or debris.

CAUTION

DO NOT use iron wool (Brillo or SOS pads), scrapers, or spatulas to clean hood!

DO NOT use the following substances on or around the hood:1. Chlorine or chlorine based substances.2. Acids (e.g. acetic, hydrochloric, sulfuric).3. Chloride based substances (e.g. mercuric chloride, ferric chloride).

Vapors of the above substances can corrode stainless steel!


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November 2008 Rev. 1

Start-Up and Maintenance DocumentationSTART-UP AND MEASUREMENTS SHOULD BE PERFORMED AFTER THE SYSTEM HAS BEENAIR BALANCED (Warranty will be void without completion of this form)

Job InformationJob Name Service CompanyAddress AddressCity CityState StateZip ZipPhone Number Phone NumberFax Number Fax NumberContact ContactPurchase Date Start-Up Date

Hood InformationRefer to the start-up procedure in this manual to complete this section.Name Plate and Unit Information VoltageModel Number High Limit SettingsJob Number Filters In Place

Maintenance RecordDate Service Performed Date Service Performed

Factory Service DepartmentPhone: 1-866-784-6900

Fax: 1-919-554-9374

Documents

Recirculating Hood OIM